Answer:
1. 203.976amu
2. 43.991amu
3. 334.36amu
Explanation:
Find a period table with the atomic mass units.
1 Hydrogen = 1.008amu
1 Carbon = 12.011amu
1 Oxygen =15.99amu
1 Nitrogen = 14.007amu
1 Sulfur = 32.066amu
Plugin for each equation
1. Sugar
6 C • 12.011amu = 72.066
12 H • 1.008amu = 12.096
6 O • 15.99amu =95.94
Add all together to get total amu (atomic mass units) for Sugar (6C12H6O)
95.94amu + 12.096 amu + 72.066amu = 203.976amu
2. Carbon Dioxide
1 C • 12.011amu = 12.011amu
2 O • 15.99amu = 31.98amu
12.011amu + 31.98 amu = 43.991amu
3. Penicillin
16 C • 12.011amu = 192.176amu
18 H • 1.008amu = 18.144amu
2 N • 14.007 = 28.014amu
4 O • 15.99amu = 63.96amu
1 S • 32.066 = 32.066amu
192.176amu+18.144amu+28.014amu+63.96amu+32.066amu = 334.36amu